GOC376928 & GOC376930 - Consulting - GOC376928 & GOC37693 -AHU Assessment and Repairs Cold Water Pumps and Piping Rep

GOC376928 AHU Assessment and Repairs
Assess condition of both air handling units to determine what repairs/upgrades are required. The Stage 1 IAR was completed under the BMP IAR Writing project PW159977 in fiscal 11-12.  AHU 1 is located in the 2nd floor penthouse and serves the main through 3rd floors.  AHU 2 is located in the 8th floor penthouse and supplies floors 4 through 9.  Supply fan SF 1 and SF 2 are at end of life and need replacement (approximately 38 years old).  The heating coils are in poor condition with noticeable thinning of walls, corrosion at the headers and manual valves are beginning to seize. The humidification array on AHU 1 and AHU2 will need to be replaced and the leaking floor under AHU 1 and AHU2 is to be reviewed and corrected through the project.
Asbestos Containing red duct sealant is present in the space. As part of the project the consultant will need to verify the presence of red duct sealant and if it is to be removed through the project.
 
GOC376930 Domestic Cold Water Pumps and Piping Replacement
The domestic cold water booster pumps and piping are located in room B11 in the basement. The piping is in poor condition and the valves will not hold. The pumps are also at end of life but require valve replacement before they can be properly isolated. This project seeks to replace the valves around the water meter, replace all of the piping after the water meter in B11, replace the pumps with a new skid mounted system that has new pumps, controls and VFD's that ties into the DDC for monitoring.